Used in pyrotechnics to produce bright red flames in fireworks and signal flares due to its ability to emit intense red light when burned. Commonly added to emergency flares and roadside distress signals for high visibility. Found in some toothpaste formulations for sensitive teeth, where it helps block pain by sealing open dentinal tubules. Employed in laboratory settings for strontium ion studies and in certain electroplating processes. Also used in the production of specialty glass and ceramics to improve stability and optical properties.